Replace the method to show SFSafariViewController

[touyou]

What

I replace the method to show SFSafariViewController because I found some usability problem of current methods.
This is how the interaction has changed.

Before

480pB.mov

After

480pA.mov

Why

I found these problems:

• SFSafariViewController enables users to close by edge swipe, so users can close sheet of Safari by edge swipe.
• When scrolling web page, top toolbar get weird. This is because SFSafariViewController cannot recognize top toolbar height inside sheet correctly.

How

I'm TCA beginner, so sorry for implementing it by UIApplication extension functions.
I replaced these view:

• ScheduleFeature
  • Detail
  • Schedule ← Revert it
• trySwiftFeature
  • Acknowledgements
  • Profile
  • trySwift

And not replace Sponsors because it already uses fullScreenCover.
According to this article, fullScreenCover still has usability problem, but it's not critical and I decided not to replace it.

[d-date]

HI @touyou ,

Thank you for improving SF Safari experience.
It might be create Safari dependency value instead of using Safari module.

See how it work and cherry-pick my commit to improve your pull request.
https://github.com/tryswift/trySwiftTokyoApp/tree/safari

[d-date]

This might be help for you to check diff. I have no plan to merge my PR. Please try to complete your work!
#48

[touyou]

@d-date Thanks for very helpful commit and advice!
I try to complete it tonight or tomorrow!

[d-date]

Thank you!